Dear Paolo,<br><br>Thank you for your reply.<br>Now I realize the importance of NVE and make the total energy conserve. <br><br>thank you again<br><br>vega<br> <br><div class="gmail_quote">On Sun, Nov 29, 2009 at 5:46 PM, Paolo Giannozzi <span dir="ltr"><<a href="mailto:giannozz@democritos.it">giannozz@democritos.it</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im"><br>
On Nov 28, 2009, at 16:08 , vega lew wrote:<br>
<br>
> By the way, during the NVE calculation, is there a command<br>
> to keep the energy of the system?<br>
<br>
</div>what do you mean? the total (kinetic+potential) energy is<br>
conserved during a (well-executed) NVE calculation. If you<br>
keep the kinetic energy constant (which you can do using<br>
velocity rescaling) it is no longer NVE<br>
<div class="im"><br>
Paolo<br>
---<br>
Paolo Giannozzi, Dept of Physics, University of Udine<br>
via delle Scienze 208, 33100 Udine, Italy<br>
Phone +39-0432-558216, fax +39-0432-558222<br>
<br>
<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>==================================================================================<br>Vega Lew ( weijia liu)<br>Graduate student<br>State Key Laboratory of Materials-oriented Chemical Engineering<br>
College of Chemistry and Chemical Engineering<br>Nanjing University of Technology, 210009, Nanjing, Jiangsu, China<br>******************************************************************************************************************<br>
Email: <a href="mailto:vegalew@gmail.com">vegalew@gmail.com</a><br>Office: Room A705, Technical Innovation Building, Xinmofan Road 5#, Nanjing, Jiangsu, China <br>****************************************************************************************************************** <br>